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It was the annual homecoming dance at the local high school gym. Most of the young folk were out on the dance floor but a few young men and women lined the sides of the gym, hoping for a dance partner to ask them out onto the dance floor.
After waiting anxiously for quite a while, a rather awkward freshman finally got up the nerve to ask a pretty junior for a dance at the homecoming.
She gave him the once-over and said, "Sorry, I won't dance with a child."
"Please forgive me," responded the underclassman. "I didn't realize you were pregnant."